Re: RE : ocfs2 functions probe not working like ext4 ones ?

[Eugeniy Meshcheryakov <eugen at debian dot org>]

25 ÑÑÑÐÑ 2010 Ð 14:01 +0100 Damien HARDY ÐÐÐÐÑÐÐ(-ÐÐ):
> I run on ubuntu 9.10, kernel recompiled (default options, just creation of /CurrentlyBuilding) to get the "debug" kernel image :
> root@acblock01:~# dpkg -l linux-image* | grep `uname -r`
> ii  linux-image-2.6.31-17-server       2.6.31-17.54                      Linux kernel image for version 2.6.31 on x86
> ii  linux-image-debug-2.6.31-17-server 2.6.31-17.54                      Linux kernel debug image for version 2.6.31
> 
> the linux-image-debug contains files about ocfs2 :
> root@acblock01:~# dpkg -L linux-image-debug-2.6.31-17-server | grep ocfs2
> /usr/lib/debug/lib/modules/2.6.31-17-server/kernel/fs/ocfs2
> /usr/lib/debug/lib/modules/2.6.31-17-server/kernel/fs/ocfs2/ocfs2_stackglue.ko
> /usr/lib/debug/lib/modules/2.6.31-17-server/kernel/fs/ocfs2/dlm
> /usr/lib/debug/lib/modules/2.6.31-17-server/kernel/fs/ocfs2/dlm/ocfs2_dlmfs.ko
> /usr/lib/debug/lib/modules/2.6.31-17-server/kernel/fs/ocfs2/dlm/ocfs2_dlm.ko
> /usr/lib/debug/lib/modules/2.6.31-17-server/kernel/fs/ocfs2/ocfs2_stack_o2cb.ko
> /usr/lib/debug/lib/modules/2.6.31-17-server/kernel/fs/ocfs2/cluster
> /usr/lib/debug/lib/modules/2.6.31-17-server/kernel/fs/ocfs2/cluster/ocfs2_nodemanager.ko
> /usr/lib/debug/lib/modules/2.6.31-17-server/kernel/fs/ocfs2/ocfs2.ko
> /usr/lib/debug/lib/modules/2.6.31-17-server/kernel/fs/ocfs2/ocfs2_stack_user.ko
> 
> What's wrong ?
> 
There are several problems with elfutils related to separate debuginfo for kernel
modules (Debian bugs #555549, #556133). Workaround for one of them is to set environment 
variable SYSTEMTAP_DEBUGINFO_PATH to "/usr/lib/debug", for example. The
other one can be fixed applying patch from
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=556133 . 

Regards,
Eugeniy Meshcheryakov

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